Production method of the giant magnetostrictive material under microgravity environment

摘要

[Abstract] To provide a method for producing a high performance magnetostrictive material in a short time and a simple process. A in the presence of a micro-gravity environment and the magnetic field, the melt of the super magnetostrictive alloy is rapidly cooled at a cooling rate of at least 50 ℃ / sec The production method of the super magnetostrictive material is characterized in that it is unidirectional solidification The melt of ultra magnetostrictive alloy and wherein the consists to be quenched by dropping impinge on a solid surface for rapid cooling, the temperature of the solid surface is at 1000 ℃ or higher temperature lower than the freezing point of the melting liquid , magnetic force on the solid surface is 0.01 Tesla or more.